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ANEXT Stair Nosing Tread Extender

Product Description

The ANEXT is a 5mm gauge aluminium stair nosing tread extender is available with a variety of infill options and colours such as castellated PVC or aluminium ATI's. The body of this nosing is available in mill aluminium, satin aluminium or polished aluminium and can be ordered to measure.

The ANEXT  has an interlocking back edge designed to accommodate a ramp extension code ANRE25 or an ANE Nap Detail for use with broadloom carpets.


This profile has a 63.6mm tread and is designed to pair with CAT's 5mm Stair Nosings with an interlocking feature.

Available Finishes:

  • Mill Aluminium

  • Satin Aluminium

  • Polished Aluminium

Size Options​:

Ordered to Measure

Max Lengths

  • Mill Alu                         3.2m

  • Satin Alu                      3.2m

  • Polished Alu                3.2m


Infill Options:

  • PVC Castellated

  • Smooth Textured

  • ATI49.5 Insert

  • Olympic Grip

  • Carborundum *2.5m only

Drilling Options​ PVC Infill:

  • Drilled retro

  • Undrilled 

Drilling Options​ ATI & Olympic:

  • Drilled retrofit infill

  • Undrilled​

Screw size 8.


Fixings not supplied.

Drilling is available - 5% charge

Stringer angles also available in Satin and Polished Aluminium.


Aluminium Technical Data Sheets

ANEXT Castellated Infill

Technical Data Sheet


Technical Data Sheet

ANEXT Smooth PVC Infill

Technical Data Sheet

ANEXT Olympic Infill

Technical Data Sheet

CAT Castellated PVC Infill Colours
Carborundum External Nosing Insert
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